Saw-filing machine.



PATENTED PEB. 26, 1907.

M. W. JONES.

SAW FILING MACHINE.

APPLIoAT'IoN mm1) JUNE 14, 190s.

2 sHEnTs-SIIEET 1.

witnesses ns co. wAsHlNcroN n c No. 845,359. PATENTED FEB. 26, 1907.

M. W. JONES.

SAWFIL'ING MACHINE. APPLwATIoN rum-JUNE 14, 190e.

2 SHEETS-SHEET 2.

v l'wnoz MW. Jnes Wim I f' l MON'ROWE WALTER JONESOF ARDMORE, INDIAN TERRITORY.

SAW-FILING MACHINE.

Specification of Letters Patent.

Patented Feb. 26, 1907.

Application filed June 14,1906. Serial No. 321.759.

To (LN, whom t 70,1/a/yc0ncer7c:

Beit known that I,v MONROWE WALTER JONES,y a citizen ofthe United States, residing at Ardmore, District No. 2,1, Indian Territory, have invented certain new and useful Im-y provements in Saw-Filing Machines and I do hereby declare the following to. be a full, clear, and exact description of the invention, such as will enable others skilled in the art towhichit appertains to make and use the same.

My invention relates to gin-saw iilers, and isfanimprovement; upon Patent No. 815,175, dated March 13, 1906, granted jointly to myself and` Joseph A. Dennis.

My object is to provide an adjusting mechanism whereby when'the device is once adjustedA all of the saws may be successively filed without resetting the same.V

A further object is to provide means for yieldingly securing the file-operating mechanism whereby when a solid surface is encountered; by the files the operating mechanism will yield and prevent breakage of the files.

Other objects and advantages will be hereinafter made clearly apparent in the speci fication andpointed out in thevclaims.

In the accompanying drawings I have shown the referred form of my invention.

In said rawings, Figure 1 is a side elevation of my improved Jfiling mechanism applied to use. Fig. 2 is a top plan view showing my improved adjusting mechanism. Fig. 3 is a detail elevation of a portion of the iile-operating mechanism, and Fig. 4 is a detail sectional view as seen from line 4 4, Fig. 3.

Referring to the figures by numerals of reference, 1 indicates the supporting-frame of my improved saw-filing mechanism, to which is secured a bifurcated tubular member 2, in which is mounted a longitudinally-movable shaft 3, said shaft having a head 4 at its outer end to which are secured files 5, said JLiles being of the usual form and preferably crossed to engage teeth upon a saw 6. The head 4 is also provided with suitable guidearms 7, which are designed to engage the blade of the saw and keep the files in alinement therewith.

The inner end of the shaft 3 is provided with a cross-arm 8, to which is secured, by

means of bolts 9, a plate 10, said plate being disposed at a distance from the cross-arm 8 and adapted to receive therebetween a cam 11, said cam being eccentrically mounted upon a shaft 12, carried by the frame 1. One side of the cam 11 is provided with a hubsection 13, which has a projection thereon forming a shoulder 14, with which is adapted to engage a projection 15 on a fly-wheel 16, said fly-wheel being rigidly secured to the shaft 12 by means of a set-screw or the like 17,. The projections 14 and 15 are so constructed as to form segments of circles in cross-section, the circumference of said segments being less than one-half the circumference of the complete circle, so that when said projections are disposed into the path of each other and in their normal positions a space will be left between the meeting ends thereof, the object of so constructing the projections being to add to the strength thereof and prevent casual breaking of the same. A pinion 18 is rigidly secured to the shaft 12 by means of a set-screw 19 and at the opposite end of the shaft from that upon which the fly-wheel is mounted and is adapted to mesh with a driving-gear 20, mounted upon a stubshaft 21 in the supporting-frame 1, said shaft being extended through one side of the frame and has mounted thereon a crank 22, by which means rotation is applied to the shaft 12. The cam 11 is loosely mounted on the shaft 12 and is held normally rigid therewith by means of a coiled spring 23, said spring being secured at one end to the pinion 18 and at its opposite end to the cam 11, the object in so mounting said cam being that when the iiles 5 encounter a bent or rusty tooth or other obstruction the rotation of the cam 11 will be checked, thereby imparting tension to the spring 23 and gradually checking the rotation of the shaft 12, so that by the time the projection 15 on the ily-wheel 16 reaches the shoulder 14 on the hub 13 the momentum of the fly-wheel 16 will have been practically stopped and the impact of the projection 15 and shoulder 14 materially reduced. As soon, however, as the files have been released from the obstruction the spring 23 will direct the cam 11 to its normal position on the shaft 12 and the filing operation continued. A spacing-ring 23a is disposed between the hub 13 and the face of the 4o ars 28 and secured in its adjusted position l ily-Wheel 16, thereby preventing lateral movement of the cam l1 on the shaft 12.

By this construction it Will be readily seen that the liability of breaking the liles is very slight, owing to the fact that the cam 1l will insure that they will properly engage the i teeth of a saw 6, I have secured to the free end of the tubular member 2 a pair of supporting-arms 24, said arms being pivotally mounted on the opposite sides of said tubular member and adjustably secured to Wings 25, carried by the tubular member 2, said Wings having slots 26 therein, through which take a bolt 27, the free ends of said supporting-arms resting upon spacing-collars 28, said collars being of the usual or Well-known form. In order to adjust the files at a suitable distance from the periphery of the saw, I pivotally secured between the supportingarms 24 a gage-arm 29, said arm being adapted to engage the peripheries of the collars 28. A link 3() is pivoted at one end to the lower end of the gage-arm 29 and is provided at its opposite end with an elongated slot 31, through which take the bolts 27 and by which means the gage-arm is held in its adjusted position.

.In placing my improved 'liling device in pcsition upon a gin-saw the supporting-arms 24 are i'irst rested upon the collars 28 upon each side of one of the saws, after which the iiles 5 are disposed in position upon the teeth, and when the proper stroke of the shaft 3 has been ascertained the gage-arm 29 is disosed against the periphery of one of the colby means of bolt 27. After the several parts have been thus adjusted they may be placed in cooperation With each succeeding tooth Without changing the adjustment of the same.

NJhat I claim is` l. A device of the class described comprising the combination With a saW-iiling machine; of supporting-arms pivotally secured to a portion or' said machine and having their outer ends arranged to rest on the saw-mandrel, means to adjustably secure said suping-arms to the machine, a gage-arm pivotally secured to said supporting-arms and arranged to bear against the mandrel, a link pivoted to said gage-arm and having its opposite end adjustably secured to the clamping means of one of said arms.

2. A device of the class described compris- 3 ing the combination With a saw-filing machine of a pair of supporting-arms pivotally secured at one end to said machine and having their opposite ends directed above and in engagement with a mandrel of a saw, an angular gage-arm pivotally secured to said supports and adjacent their outer ends, one portion of said gage-arm being adapted to engage and bear against the mandrel, a link pivoted to the lower end of said gage-arm and having a slot at its opposite end, means engaging one of said supports and the slot in said link to adjustably secure the support and link to the machine and similar means for adjustably securing the opposite support to the machine. x

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

MONROVE IVALTER JONES.

i IVitnesses:

FRANK BERRYHILL, ,i C. MINER. 

